NEET Exam  >  NEET Tests  >  Test: Immunity and AIDS (January 5) - NEET MCQ

Test: Immunity and AIDS (January 5) - NEET MCQ


Test Description

10 Questions MCQ Test - Test: Immunity and AIDS (January 5)

Test: Immunity and AIDS (January 5) for NEET 2024 is part of NEET preparation. The Test: Immunity and AIDS (January 5) questions and answers have been prepared according to the NEET exam syllabus.The Test: Immunity and AIDS (January 5) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Immunity and AIDS (January 5) below.
Solutions of Test: Immunity and AIDS (January 5) questions in English are available as part of our course for NEET & Test: Immunity and AIDS (January 5) solutions in Hindi for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Immunity and AIDS (January 5) | 10 questions in 10 minutes | Mock test for NEET preparation | Free important questions MCQ to study for NEET Exam | Download free PDF with solutions
Test: Immunity and AIDS (January 5) - Question 1

The first line of defence in the immune system is provided by

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 1

Skin and mucous membrane are the physical barriers that provide the first line of defence or the external defence. These barriers prevent the entry of microorganisms into the body. Outer tough layer of the skin, the stratumm corneum prevents the entry of bacteria and viruses. Mucus secreted by mucous membrane traps the microorganisms and immobilises them.

Test: Immunity and AIDS (January 5) - Question 2

Which one of the following statements is true?

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 2

When HIV enters into the body of a person,it moves into macrophages where RNA genome of the virus replicates to form viral DNA with the help of enzyme reverse transcriptase. This viral DNA gets incorporated into cethe host cell's DNA and directs the infected cells to produce more viruses. The macrophages producing viruses, thus act as HIV enters into helper T-cells where it replicates and produces other virus. this is repeated so that the number of helper T-cells decreases in the body of the infected person. Dysentery (Bacillary) plaque and diphtheria are bacterial diseases, Ringworm appears during summer and rainy season. Widal test is used for confirmation of typhoid.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Immunity and AIDS (January 5) - Question 3

Antibodies are secreted by

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 3

Antibodies are immunoglobulins which are produced in response to antigenic stimulation. Antibodies are produced by B-lymphocytes. Antibodies direct the antibody-mediated immunity

Test: Immunity and AIDS (January 5) - Question 4

 AIDS is characterized by

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 4

AIDS is caused by HIV. When HIV enters into helper T-cells, it replicates and produces other viruses that kill the helper T-cells. Thus the number of T-cells decrease in the body of the infected person and the person starts suffering from various infections.

Test: Immunity and AIDS (January 5) - Question 5

Select the correct statements regarding the characteristics of acquired immunity.
(i) Cell-mediated immunity is responsible for acquired immunity.
(ii) It produces a primary response of low intensity.
(iii) Active and passive immunity are types of acquired immunity.
(iv) Polymorphonuclear leucocytes and natural killer cells are involved in acquired immunity.

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 5

Acquired immunity is the type of immunity acquired during life time. Both cell-mediated immunity (mediated by T-cells) and humoral immunity (mediated by B-cells) are responsible for acquired immunity. Acquired immunity is characterised by memory. This means that when our body encounters a pathogen for the first time, it produces a response called primary response which is of low intensity. Active immunity and passive immunity are types of acquired immunity. Polymorphonuclear leucocytes and natural killer cells are involved in innate immunity. These cells phagocytose and destroy microbes.

Test: Immunity and AIDS (January 5) - Question 6

The figure given below shows mode of action of AIDS virus. Identify steps A, B, C, D and E labelled in it.

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 6

Reverse transcription takes place during the formation of viral genomic RNA from DNA.

Test: Immunity and AIDS (January 5) - Question 7

The abbreviation AIDS stands for

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 7

AIDS (Acquired immuno deficiency syndrome) is human immunodeficiency syndrome, a series of diseases caused by the human immunodeficiency virus or HIV. It may also be referred to as HIV disease or HIV infection.

Test: Immunity and AIDS (January 5) - Question 8

Read the following statements regarding spleen and select the correct option.
(i) Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes.
(ii) Spleen is a large reservoir of erythrocytes.
(iii) Spleen is a primary lymphoid organ.
(iv) Spleen acts as a filter of the blood by trapping blood-borne microorganisms.

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 8

Spleen is a secondary lymphoid organ

Test: Immunity and AIDS (January 5) - Question 9

Passive immunity can be conferred directly by

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 9

Transfer of immune products like antibodies and immunoglobulins to a recipient is called passive immunity. Colostrum, a yellowish milk secreted by mother during the initial days of lactation has abundant antibodies to protect the infant. In tetanus, we need to directly inject the preformed antibodies or antitoxin (a preparation containing antibodies to the toxin). These both are examples of passive immunity.

Test: Immunity and AIDS (January 5) - Question 10

Which of the following is not a cause of transmission of HIV?

Detailed Solution for Test: Immunity and AIDS (January 5) - Question 10

By mosquitoes, ticks, or other insects. Through saliva, tears, or sweat. By hugging, shaking hands, sharing toilets, sharing dishes, or closed-mouth or “social” kissing with someone who has HIV. Through other sexual activities that don't involve the exchange of body fluids (for example, touching).

Information about Test: Immunity and AIDS (January 5) Page
In this test you can find the Exam questions for Test: Immunity and AIDS (January 5) solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Immunity and AIDS (January 5), EduRev gives you an ample number of Online tests for practice

Top Courses for NEET

Download as PDF

Top Courses for NEET